luongnv89/claude-howto is a visual, example-based guide to Claude Code, a coding tool that supports agents, hooks, skills, slash commands, and MCP servers. Developers use it to learn Claude Code through practical workflows and copyable templates, including the commands, agents, skills, plugins, and instructions catalogued here.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add luongnv89/claude-howto --skill doc-generatorgit clone --depth 1 https://github.com/luongnv89/claude-howtoWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/luongnv89/claude-howto/doc-generator)<a href="https://agentmods.dev/skills/luongnv89/claude-howto/doc-generator"><img src="https://agentmods.dev/badge/skills/luongnv89/claude-howto/doc-generator/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/luongnv89/claude-howto/doc-generator"><img src="https://agentmods.dev/badge/skills/luongnv89/claude-howto/doc-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 57 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 71 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00038 | $0.00461 |
| Opus 5 | $0.00019 | $0.00230 |
| Sonnet 5 | $0.00008 | $0.00092 |
| Haiku 4.5 | $0.00004 | $0.00046 |
Grade A, and why
doc-generator scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X GET "https://api.example.com/api/v1/users/usr_123" \ What it actually says
API Documentation Generator Skill
Generates
- OpenAPI/Swagger specifications
- API endpoint documentation
- SDK usage examples
- Integration guides
- Error code references
- Authentication guides
Documentation Structure
For Each Endpoint
## GET /api/v1/users/:id
### Description
Brief explanation of what this endpoint does
### Parameters
| Name | Type | Required | Description |
|------|------|----------|-------------|
| id | string | Yes | User ID |
### Response
**200 Success**
```json
{
"id": "usr_123",
"name": "John Doe",
"email": "[email protected]",
"created_at": "2025-01-15T10:30:00Z"
}
```
**404 Not Found**
```json
{
"error": "USER_NOT_FOUND",
"message": "User does not exist"
}
```
### Examples
**cURL**
```bash
curl -X GET "https://api.example.com/api/v1/users/usr_123" \
-H "Authorization: Bearer YOUR_TOKEN"
```
**JavaScript**
```javascript
const user = await fetch('/api/v1/users/usr_123', {
headers: { 'Authorization': 'Bearer token' }
}).then(r => r.json());
```
**Python**
```python
response = requests.get(
'https://api.example.com/api/v1/users/usr_123',
headers={'Authorization': 'Bearer token'}
)
user = response.json()
```
Last Updated: August 4, 2026 Claude Code Version: 2.1.220 Sources:
- https://code.claude.com/docs/en/skills Compatible Models: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 85 lines · 38 tokens per session scan A cad8762e85ca
doc-generator is a skill published in the GitHub repository luongnv89/claude-howto (41,407 stars, last pushed 2d ago), licensed MIT. It adds 38 tokens to every session and 461 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
docs-page
A long-form technical documentation page with a left navigation panel, a main article, and a right table of contents. A table of contents lists the page sections and links to them.
frontmcp-config
Use when configuring a FrontMCP server through frontmcp.config or the @FrontMcp options. Covers auth modes (public, transparent, local, remote), OAuth plus credential vault and secureStore, CORS, HTTP port / entry-path prefix / unix socket, security headers (CSP, HSTS, X-Frame-Options, X-Content-Type-Options), rate…
frontmcp-development
Use when building any FrontMCP server component other than a tool (for tools, use create-tool). Covers @Resource static resources and parameterized URI templates; @Prompt reusable prompts (RAG, multi-turn); @Provider singleton dependency-injection providers (database pools, API clients); @Agent autonomous LLM agents…
backend-interview
A simulated technical interview for backend developers, based on the candidate’s resume. It asks foundational questions, explores past projects, and includes one system-design exercise.
create-workflow-dotnet
This skill creates a Dapr workflow application in .NET. Use this skill when the user asks to "create a workflow in .NET", "write a .NET workflow application" or "build a workflow app in C#".
create-workflow-from-diagram
This skill creates a Dapr workflow application from a diagram. Use this skill when the user provides a workflow image (PNG, JPG, JPEG, GIF, WebP) or a BPMN 2.0 XML file (.bpmn, .bpmn20.xml) and asks to "create a workflow from this diagram", "generate a Dapr workflow from this image", "scaffold a workflow from this…